Yes. The Quran says that whoever kills a soul unjustly, it is as if he had killed all mankind (5:32), and forbids killing the soul that Allah has made sacred except by right (6:151, 17:33). The Prophet ﷺ said that blood shed is the first matter judged between people.
Kwa sababu ya hayo tuliwaandikia Wana wa Israili ya kwamba aliye muuwa mtu bila ya yeye kuuwa, au kufanya uchafuzi katika nchi, basi ni kama amewauwa watu wote. Na mwenye kumuokoa mtu na mauti ni kama amewaokoa watu wote. Na hakika waliwajia Mitume wetu na hoja zilizo wazi. Kisha wengi katika wao baada ya haya wakawa waharibifu katika nchi.
Sema: Njooni nikusomeeni aliyo kuharimishieni Mola wenu Mlezi. Nayo ni kuwa, msimshirikishe Yeye na chochote. Na wazazi wenu wafanyieni wema. Wala msiwauwe watoto wenu kwa sababu ya umasikini. Sisi tunakuruzukuni nyinyi na wao. Wala msikaribie mambo machafu, yanayo onekana, na yanayo fichikana. Wala msiuwe nafsi ambayo Mwenyezi Mungu ameharimisha kuiuwa, ila ikiwa kwa haki. Hayo amekuusieni ili myatie akilini.
Wala msiuwe nafsi ambayo Mwenyezi Mungu amekataza isipo kuwa kwa haki. Na aliye uliwa kwa kudhulumiwa basi tumempa madaraka mrithi wake. Lakini asipite mpaka katika kuuwa. Kwani yeye anasaidiwa.
Hadith
Sahih al-Bukhari 6533
Narrated `Abdullah:The Prophet (ﷺ) said, "The cases which will be decided first (on the Day of Resurrection) will be the cases of blood-shedding
Arabic text (with chain of narrators)
حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا الأَعْمَشُ، حَدَّثَنِي شَقِيقٌ، سَمِعْتُ عَبْدَ اللَّهِ ـ رضى الله عنه ـ قَالَ النَّبِيُّ صلى الله عليه وسلم " أَوَّلُ مَا يُقْضَى بَيْنَ النَّاسِ بِالدِّمَاءِ ".
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is killing a person haram?
Yes. The Quran says that whoever kills a soul unjustly, it is as if he had killed all mankind (5:32), and forbids killing the soul that Allah has made sacred except by right (6:151, 17:33). The Prophet ﷺ said that blood shed is the first matter judged between people.